function mouseOver_rail()
{
document.getElementById("r1").src ="../images/bg/rail2.png";
}
function mouseOut_rail()
{
document.getElementById("r1").src ="../images/bg/rail1.png";
}

function mouseOver_home()
{
document.getElementById("h1").src ="../images/bg/home2.png";
}
function mouseOut_home()
{
document.getElementById("h1").src ="../images/bg/home1.png";
}

function mouseOver_air()
{
document.getElementById("a1").src ="../images/bg/airfares2.png";
}
function mouseOut_air()
{
document.getElementById("a1").src ="../images/bg/airfares1.png";
}

function mouseOver_contact()
{
document.getElementById("c1").src ="../images/bg/contact2.png";
}
function mouseOut_contact()
{
document.getElementById("c1").src ="../images/bg/contact1.png";
}

function mouseOver_vac()
{
document.getElementById("v1").src ="../images/bg/vacation2.png";
}
function mouseOut_vac()
{
document.getElementById("v1").src ="../images/bg/vacation1.png";
}

function mouseOver_hotel()
{
document.getElementById("hotel1").src ="../images/bg/hotel2.png";
}
function mouseOut_hotel()
{
document.getElementById("hotel1").src ="../images/bg/hotel1.png";
}